cruise control
Lead Driver
Joined: Jan 2010
Posts: 6,600
Likes: 84
In my opinion, you are correct about cruse being less efficient than manual control (our brains).
If you work for it, you can get better MPG without cruse.
However, my right leg gets tired and what little fuel it will save is not worth it to me so I set it, pay attention to traffic and enjoy the drive.
This truck (the 6.7L at least) is good, if not great, at maintaining correct speed in cruse.
If you work for it, you can get better MPG without cruse.
However, my right leg gets tired and what little fuel it will save is not worth it to me so I set it, pay attention to traffic and enjoy the drive.
This truck (the 6.7L at least) is good, if not great, at maintaining correct speed in cruse.
Mountain Pass
Joined: Feb 2010
Posts: 113
Likes: 6
From: Pacific Northwest
Yes. The cruise on the 6.7L is the best of any car I've ever had! Just came back from a 450 mile trip towing our TT. First vehicle I've ever had that didn't get crazy in the mountains. Especially impressive considering we were towing.
Combine that with Tow/Haul mode and integrated trailer brakes and it was completely drama-free towing.
Sorry. I didn't mean to hijack.
Combine that with Tow/Haul mode and integrated trailer brakes and it was completely drama-free towing.
Sorry. I didn't mean to hijack.
Lead Driver
Joined: Jan 2006
Posts: 6,267
Likes: 5
What they need is a new version of cruise control, that uses GPS and topographical maps to not only maintain a speed, but slightly adjust fueling based on landscape information.
It could even slow down a touch around turns, speed up before a big hill, and downshift when approaching a valley.
It could even have safety features, so that it de-activates when approaching a stop sign, important intersection, etc.
Basically auto pilot, minus the steering.
It could even slow down a touch around turns, speed up before a big hill, and downshift when approaching a valley.
It could even have safety features, so that it de-activates when approaching a stop sign, important intersection, etc.
Basically auto pilot, minus the steering.
FTE Chapter Leader
Joined: Jan 2006
Posts: 21,345
Likes: 8,062
From: North Central Washington
I noticed while drivingmy 2012 F-250 with the cruise control on, the turbo goes up and down almost surging as if it can't find a happy medium. It happends at all different speeds. The highway was flat and no wind and no load. Is this normal? Also the truck was not in regen.
What I would like to see on my cruse control is something like three buttons for presets, two would work fine. Say something like 65 MPH, 45 MPH and maybe 35 MPH. Where I live there are several sections along the state hwy that have speed limits of 45 MPH for 4 or 5 miles it would be nice to just push a button and relax.
FTE Chapter Leader
Joined: Jan 2006
Posts: 21,345
Likes: 8,062
From: North Central Washington
I payed more attention to mine last night on my Edge Insight gauge and on flat road it doesn't move at all. I was empty there was no wind and had cruise set at 65mph and I was running at 5 PSI boost. Now on the slightest little bit of a grade the boost would move up a little but never just move up and down like you describe.
I know that is no help to your problem but it does sound like you have problem.
I know that is no help to your problem but it does sound like you have problem.
Thread Starter
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New User
Joined: Dec 2012
Posts: 18
Likes: 0
Most of the time it runs like it should. It's just every now and again it acts up. I also noticed while towing a 15k trailer last week that there is a shutter on take off thru 1st and 2nd gear. I don't know if there could be a problem with the turbo. Any thoughts?
Senior User
Joined: Jan 2013
Posts: 238
Likes: 0
From: Northern New Mexico
Yep. I have seen it also, but infrequently. Cruise, straight, flat, no wind, not in regen at about 65 mph, I have seen a repeating oscillation about every 5-10 seconds from about 5 psi to about 11-12 psi. This lasts for maybe 5-7 minutes. I can feel a slight power surge. This happens infrequently and usually the power surge is what draws my attention to the boost pressure.
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Tuned
Joined: Oct 2007
Posts: 285
Likes: 4
From: Jackson,WY
I noticed while drivingmy 2012 F-250 with the cruise control on, the turbo goes up and down almost surging as if it can't find a happy medium. It happends at all different speeds. The highway was flat and no wind and no load. Is this normal? Also the truck was not in regen.
I know exactly what you are talking about. Mine does that too.
The truck will acutally start to shutter and buck. All the while the boost gauge is bouncing from 3-14psi, with no intention of stopping. I have let it do its thing for 20 miles at a stretch thinking it would calm down, no luck. The only way to have it stop is to take off cruise control and drive with the foot on the pedal. Also if I get a gust of wind just right up the air cleaner it will bounce around a bit as well. Stock intake on the truck, tried a AFE stage 2, bad mistake absolutly undriveable and lost 5 mpg in the process.
I have had it to 2 very competant Ford dealers in my area and no one can tell what causes it.
I think it is the ECM trying to compansate for HWY inconsistancies, wind and such and then it gets in a self degrading pattern as others have mentioned.
To say the least it is very annoying and makes the fuel milage drop by a couple mpg's. Now I just deal with it.
Posting Guru
Joined: Nov 2010
Posts: 1,783
Likes: 1
From: WY
I know exactly what you are talking about. Mine does that too.
The truck will acutally start to shutter and buck. All the while the boost gauge is bouncing from 3-14psi, with no intention of stopping. I have let it do its thing for 20 miles at a stretch thinking it would calm down, no luck. The only way to have it stop is to take off cruise control and drive with the foot on the pedal. Also if I get a gust of wind just right up the air cleaner it will bounce around a bit as well. Stock intake on the truck, tried a AFE stage 2, bad mistake absolutly undriveable and lost 5 mpg in the process.
I have had it to 2 very competant Ford dealers in my area and no one can tell what causes it.
I think it is the ECM trying to compansate for HWY inconsistancies, wind and such and then it gets in a self degrading pattern as others have mentioned.
To say the least it is very annoying and makes the fuel milage drop by a couple mpg's. Now I just deal with it.
The truck will acutally start to shutter and buck. All the while the boost gauge is bouncing from 3-14psi, with no intention of stopping. I have let it do its thing for 20 miles at a stretch thinking it would calm down, no luck. The only way to have it stop is to take off cruise control and drive with the foot on the pedal. Also if I get a gust of wind just right up the air cleaner it will bounce around a bit as well. Stock intake on the truck, tried a AFE stage 2, bad mistake absolutly undriveable and lost 5 mpg in the process.
I have had it to 2 very competant Ford dealers in my area and no one can tell what causes it.
I think it is the ECM trying to compansate for HWY inconsistancies, wind and such and then it gets in a self degrading pattern as others have mentioned.
To say the least it is very annoying and makes the fuel milage drop by a couple mpg's. Now I just deal with it.
Notice the pieces of tumbleweed in the grille. I pulled out a whole bunch of them.
Tuned
Joined: Oct 2007
Posts: 285
Likes: 4
From: Jackson,WY
I haven't encountered the surging problem you speak of, but, a few weeks ago I was down around Torrington, WY, and the wind was 60-65 mph steady and gusts over 75 mph. There were so many tumble weeds blowing right at me in a head wind. I rounded a slight curve and a gust of wind hit me so hard, it knocked off the cruise control. It was like hitting a brick wall.
Notice the pieces of tumbleweed in the grille. I pulled out a whole bunch of them.
Notice the pieces of tumbleweed in the grille. I pulled out a whole bunch of them.
Did the tumble weeds crack your grill?? It looks like they did. To take the truck off cruise it must have been quite the wack. At least no one got hurt or blown of the road.
But the wind can sure blow in the right parts of our state huh.
Tuned
Joined: Oct 2007
Posts: 285
Likes: 4
From: Jackson,WY
https://www.ford-trucks.com/forums/1...on-update.html
Possibly this TSB is the answer to our issues??
I know that mine is always in the 900-1400 RPM range when the shuttering and surging starts.
Possibly this TSB is the answer to our issues??
I know that mine is always in the 900-1400 RPM range when the shuttering and surging starts.
Posting Guru
Joined: Nov 2010
Posts: 1,783
Likes: 1
From: WY
Coming thru Scotsbluff, NE, the fields had already been plowed and getting ready for spring planting. With the winds like they were, the dirt and chaff was like driving thru a sand-blaster.
Yes, WY can get very windy at times.
